2010
DOI: 10.1016/j.desal.2010.07.018
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Decolorization and degradation of Ponceau S azo-dye in aqueous solutions by the electrochemical advanced Fenton oxidation

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Cited by 106 publications
(43 citation statements)
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“…A banda na região do visível, responsável pela coloração do PON 2R, é atribuída à transição n → p*, referente ao grupo azo (-N=N-). 41 As bandas com máximos na região do ultravioleta são atribuídas à transição p → p*, referente a sistemas com anéis aromáticos.…”
Section: Espectroscopia De Absorção Na Região Do Uv-visunclassified
“…A banda na região do visível, responsável pela coloração do PON 2R, é atribuída à transição n → p*, referente ao grupo azo (-N=N-). 41 As bandas com máximos na região do ultravioleta são atribuídas à transição p → p*, referente a sistemas com anéis aromáticos.…”
Section: Espectroscopia De Absorção Na Região Do Uv-visunclassified
“…Insufficient treatment of wastes of the dyestuff industries leads to dye contamination of the environment, natural water bodies, and consequently, the soil and groundwater once the dye discharged into the environment as effluent [7]. Dyeing effluents are very difficult to treat, due to their resistance to biodegradability, stability to light, heat and oxidizing agents [8].…”
Section: Introductionmentioning
confidence: 99%
“…The persistence of azo dyes in the environment causes pollution of water and soil. Therefore, an adequate treatment of these dyes remains necessary before discharging them into the natural environment [2]. There biodegradation is generally difficult.…”
Section: Introductionmentioning
confidence: 99%
“…Thus, serious ecological and environmental problems are created [3]. Various elimination techniquesof monoazo dyes have been used, like advanced oxidation process "electro Fenton" [2,4], Fenton [5] , photocatalysis [6,7] and adsorption [8,9]. Oxidation by ozone, super-iron (VI) and hypochlorite were the most efficient treatment methods, but they are less preferable due to the operating cost and the generation of a second pollution resulting from the presence of residual chlorine [10,11].…”
Section: Introductionmentioning
confidence: 99%